<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
<style>
    p{
        width:100px;
        height: 100px;
        border: 1px solid #c22525;
    }
    span{
        width:100px;
        height: 100px;
        border: 1px solid #000;
    }
    input{
        width:100px;
        height: 100px;
        border: 1px solid #3bd653;
    }
</style>
</head>
<body>
    <div>hello</div>
    <P>DX</P>
    <span >world</span>
    <a href="https://www.baidu.com">百度</a>
    <input type="text" name="" id="">
</body>
</html>